Plumb-level.



R. B. YOUNG.

PLUME LEVEL.

APPLICATION FILED SEPI. s. 191e.

1,227,360. and May 22, 1917.

Inventor Attorneys UNITED s'iA'rEs PATENT oFFIeE.'

nANsoME B. YOUNG, 0F H-AzLE'roN, PENNSYLVANIA.. f

To Z6 whom it muy concern: f i

, lle itknown that I, l'tANson-n' B. YoUNG, a `citizen Vof the United States, residingat Hazleton, in the county of Luzerne and State ot' Pennsylvania, have invented a new and useful 1lumbI Jevel, of which the follo\\'in,e,` is av specification.A

The device. forming the st lhjectlmatter ot' this application is a plumb level, and the present application proposesY sundryspeeilic in1|.`novements in the plumb level shown in my prioil latent No. (534,657, granted on the 10th day of October, 1895). y

'lhc invention aims, specifically, to provide. novel means whereby the shaft of the pendulum indicator may' be held Vagainst movement, and to improve the support on which the pendulum indicator swings.

It is within thc province of the disclosure to improve generally and to enhance the utility of devices of that type to which the present invention appertains.

With the above and other objects in view lwhich will appear as the description proceeds, the invention resides in the combination and ari'angtanentot parts and in the, details of'construction hereinafter described and claimed, it. being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is' claimed. without depa rtinp,r from the spi rit of the invention.

ln the accompanying drawings Figure l shows in side elevation, a pol'- tion ot a plumb level lconstructed inarcordance with the present invention Fig-2 is a cross section of the plumb level forminglr the suhjectnnitter ot this application.

Since the plumb level herein disclosed resembles in many particulars, the plumb 'level shown in my prior patentathe description in'this aiiplication will follow the. descrip` tion of the patent abovemientioned, notice being' given al; the. properpoirt where the description of what is new begins. The numeral l0 designates the stock of the instrument, \\"hich.i.-sl cut away at its center to form an opening for the reception ola scale ring 1l having' suitable `gfraduations adapted to he designated by a pendulum indicated atl?, having, pi.'el"erahly, a central upright pointer 13, lateral pointers 14, and a depending; pointed weight l5.I Carried by this depending weight are adjustable poises 1G, mounted upon a transverse pin or .specification of Letters Patent. i

y nimh-LEVEL. i

i Patented May-22, 1917.

Application led September 5, 1916. Serial No. 118,546.,

rod 17, whereby in case of necessity, any inaccuracy' of equlibrium'in the indicator may herecti.tied by thx adjustment ot' the poiscs. Thle indicator is'arranged, as above stated, within "the space bounded 4by thev scal ring 11, ot which the side surfaces are preferably beveled to enable the device to be viewed lroln either side,` and Vthe indicator spindle 1S, whichl is secured transversely ,through the in'dicati'ir 12 by means ot' suitable nuts lil, is provided withterminal center points. rl`he numeral 2l indicates a pair of guards or crystals held to the stock 1'() by securing rings 3S-l. The stock 10, which is preferably constructed ot wood. may be provided alonglits 1 A i lower edge with a face plate zbt, and mounted in a channel whiehris closed at its out-er side by said face. plate., are extension slides QU.

The foregoing' elements are shown in patent above enumerated, andthe novel por tions of the structure` peculiar to this application. will now beset forth.

The` invention connu-ises a pair of V- shaped hangers each including` an arm 30 and an arm 3l. the upper extremities ot the Varms 30 and ill ol the hangers-being attaehed. hy means ot seem-in;r elements 32, to

the scale ring ll. lhe indicator spindle 1S isv jonrnaled in the lower portions o't these hangers. The lower ends of the `ln'lnlgers carry grips 22 which` as in prior patent. are mounted to slide in openings `.formed in the guards or crystals "ll. 'lhc ,grips Q2 may be dispensed with il` desired. ".lhc arm 30 of one hanger has an inwardly projecting lug;r ai. l Tuto 'the lue il?) is threaded a screw 3G, tne inner eud otwhieh is adapted to bear on the ,indicator spindle l5". rlhe. vscrew ESG passes i through the scale Iring 11 and through the stock10` and is provided at its outer end with a button 5K7.

W'hen it'- is desired to hold the pointer 13 or tho pointers` l I temi'mrarily ou the graduations of the .si-ale ring ll, then the, ,trips QQ may be pressed toward each other, thus causing-thelowerends o'l'thehangers to bear upon the ends oi the imlieator spindle `18X.4

Screw io near against the indieatoij spin@ (lle 1S, Y

There Vis av specifie advantage inl inal'ing thehangeis, comprising the allns() `and 3l, of V-shape'. The sel'e'w 256, it is to he ohsei'i'ed, extendsl along' the ,afin 30, approximately parallel thereto'. the screw f. calfifving the button il?, should he struck accidentally.y l'the .alni 3() might be distorted. and the. position of lthe pendulum indicated at 12 ln'ight'be shifted, were it4 not. for the fatfthat the hanger'incladesathe 11i-n1 l' V31 which acts, as

and is not lif'the onteiend of ers depending troni the seule 'ring and n-' @hiding diverg'ing z n'ni's'; .a pendulum including a shaft l'nonnted to ro'ek 1u the hangel'sadjacent the point of -j'ul'i'cture of the aiins of the hangers; and a set screw ,thread- "ed into one of. said eopel'ating elements und at 11's inner endon the shaft@v adapted tollem the Het serewjextending substantiallyparallel to one` anni ofv onel hanger. and the other arm o'l digi-saine hanger :iL-ting.' as a ln'aee pii'x'entinga shifting ol' the axis of rotation j of the; sliaft,\\"l1en the screw imno-ved. z

In testnm-my that 1 elainrtheforegoing as my ,ow'lnI' have hereto alix'ed my signature 1li-'the presence of two witnesses.

1 RANSOME B'. YOUNG. lVitn'esses: I Y

GIB, M. McHirmfky," CHARLES O.' BECK. 

